Safety-tread for stairs and steps.



A. 1. DAVIS.

SAFETY TREAD FOR STAIRS AND STEPS.

APPLICATION FILED NOV. 3, 1908.

i fie Patented 0ct.18,1910,

2 SHEETS-8HEET 1.

, INVENTOR,

eyigd-Arromvfy,

W A I. DAVIS. SAFETY TREAD FOB STAIBS AND STEPS.

APPLICATION FILED NOV. 3, 190a.

Patented Oct. 18,1910.

2 SHEETSSHEBT 2.

4ue a 'lu ezav W M764 Arron/v5;

To all whom it may concern:

' stasis,

' iisicn AUGUSTIN I. DAVIS, 0F LOWELL, MASSdCHUSETTS, ASSIGNOR T0 AMERICAN EASON SAFETY "BREAD COMPANY, 05 85,00, MAINE, A CORPORATION OF MAINE.

seems-semen son STAIRS AND s'rsss.

Speclflcction of Letters Patent.

Application sled November 8, mos. wrisl Ito. $0,937.

Be it known that I, Aeeosrm I.,DAV/IS, e citizen of the United stetes,residing at Lowell, in the county oi Middlesex and Commonwealth of Massachusetts, have invented e certain new and useful improvement in Safety-Treads for'Steirs and Steps, of which the following is s s ecificetion.

This invention relates to se et -trcads for steirs and steps and the obj ect oi said invention is to produce, especially for indoor use, e com erstively inex%ens1ve safety-tread, in wbic n en ornementeappearance is combined with non-slipping. uelities.

I form. the body of the ass of sheet metal bent or folded to form one'side of e groove for the recs, tion of non-slipping materiel, the other si e of said groove being formed by e nosing-piece which may be of more durable or more ornaments]; materiel or which msy combine both of these quelities. I have slsoshown the base provided with means for lic-iding down the front edge oi it met which nisy be of any materiel commonly used for the our ose, es linoleum, rubber, cork-cespet or ot er suitable sheet materiel, k I

- in the eccompenying drawing, on two slieets, Figure l, is an isometric perspective view of e pert of e -stsir provided with my -ini roveinent tbs stair-tread end risers end end s loose witli the 'ssfety treed being in vertical sections on linw st right angles to the front edge or nosing of e steir; Fig. 2, e vertical section on the line 2 2 in Fig. 1; Fig. 3, s plen of pert oi the bees shown in Figs 1 end 9; Fig. Al, en isometric perspective view oi the bees end filling, showing e modification oi tbs groove; Fin. 5, s similar view-of e met s modificetion oi the nosins -piece end bosses of ettscliing the same to the bees; Fig. 6, at similar view of another niodiiicsticn oi the base and nosing-piece showing else the treed of at step and it met; Fig. 7.,similsr to Fig. ti, but omitting the met end showing e modification of the nosing-piece, A denotes s tresdof a step or stair, end B, risers, ell being or usual construction.

The safety-tread is represented in Figs. 1, 2 end-3 es lisving e sheet-metal base G, doubled upon itself at 0 0 end lisvingthese doubled portions or folds inclined a'wsy from each other, the pert or fold a receivin the front beveled edge of it met D wbic may be oflinoleum, rubber, cork-carpet or otiiersbeet materiel suitable for the pur ose,

fold a, said ma t being secured in place by any usual means, preferab y by tacks driven through said mat and through holes 0 with which said base G is provided into the tread [1. The base between the folds c c is provided at intervals with holes 0 to receive screws E by which said base is secured to the tread A of a step. The fold c forms the beck or inner side of e dovetail groove G for the reception of an nonslipping ms teriel as lead or other e besive materiel. or e suitebie cement medenon-slipping by containing grits or otherwise in eny well known member. The front side of said cove G is vend thick enough to reach to the top 0 the formed by e nosing-piece H which extends modifications, the letters oi reference pre-' viocsi mentioned, indicate earts which are substantially iilre those above described. in Fig. the u per iii-iii" oi the fold a farthest iron: the nosing is bent forward at c in such nssnner til-st the lower pert thereof serves to retain tbs front edge or" the met in piece while the upper pert of said icld overhangs in s forward direction and retains the filling F in place, the i old C 'iZlHIS serving the purose of the two folds c c in Figs. 1*3. in C3 5, tbs iront insrginsl pert c of the base is turned up instead oi down end enters e fold it in tit-9 upper part of the nosing-piece il in Figs. t3 and 7, the nosing H H is represented as oi" thicker materiel, es of cast metei, end riveted st if k to the front or nosing" pert c of the sheet metal bsse.

in all the forms oi my invention the nosing is necessarily secured to the base before the anti-slipping material is applied and both of these operations will preferably be done at the factory. The mat D is ut 7 fold, to form with sai vening portion of said base a continuous dovetail groove for the reception of antiin place after the base is secured in position.

The tread, if worn, will be leveled in the usual manner as by means of cement I laid in the depressions a. (See Figs. 1 and 2.) I claim as my invention U 1 The comblnation of a sheet-metal base having an upwardly extending fold and a nosing secured to said base and extending downward in front of the tread of a step or stair and upward as hi h as the to of said fold and t e interslipping material.

2. The combination of a sheet-metal base having an upwardl noslng-piece of di erent material secured thereto and arranged and adaptedto form with said fold and the intervening portion extending fold and a of the base, a continuous dovetail groove for p the. reception of non-slippingmaterial.

3. The combination of'a sheet-metal base having-an upwardly extending fold, a nosing secured to said base and extending upward as high as the top of saidv fold, to form with said fold and the intervening portion tacks may be driven to secure sald mat in place. 7 t

In wltness, whereof, I have affixed my s1gnature, in presence of two witnesses.

I AUGUSTIN I. DAVIS.

Witnesses: ALBERT M. MOORE,

LUDGER A. NrcoL. 

